154 Series OMNI-BLOK® Fuse & Holder Assemblies

Littelfuse 154 Series OMNI-BLOK® Fuse and Holder Assemblies offer a solution for efficient installation and easy replacement of miniature Nano2® surface-mount fuses. These devices include very fast-acting and time-lag options, easy fuse replacement, 260°C reflow capable fuse holder, and heat-resistant fuse holder. The 154 fuse and holder assemblies are RoHS-compliant and Halogen-free. These holders are sized to fit a range of Nano-type fuses. The 154 OMNI-BLOK fuse and holder assemblies operate at a temperature range of -55°C to 125°C and are UL/CSA/NMX 248-1, UL/CSA/NMX 248-14, and UL/CSA/NMX 4248-1 recognized.

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Description Datasheet Availability Pricing (CLP) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Product
Fuse Type
Current Rating
Voltage Rating AC
Voltage Rating DC
Interrupt Rating
Fuse Size / Group
Minimum Operating Temperature
Maximum Operating Temperature
Packaging
Resistance
Littelfuse Surface Mount Fuses Fuseblck w/ fuse .4A OMNI BLOK 154
Datasheet
1.156In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Fast Blow 400 mA 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 560 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK SB RoHS 260C .500A
Datasheet
928In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 500 mA 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 700 mOhms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse.75A OMNI BLOK 154
Datasheet
4.280In Stock
4.500Expected 9/21/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Fast Blow 750 mA 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 245 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK VFA RoHS 260C .750A
Datasheet
3.451In Stock
4.500Expected 11/26/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Fast Blow 750 mA 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 245 mOhms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse.75A OMNI BLOK 154T
Datasheet
4.521In Stock
4.500Expected 11/19/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 750 mA 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 360 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK VFA RoHS 260C 1A
Datasheet
2.465In Stock
3.000Expected 11/26/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Fast Blow 1 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 153 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK VFA RoHS 260C 2A
Datasheet
1.130In Stock
1.500Expected 12/28/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Fast Blow 2 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 36.7 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK SB RoHS 260C 2A
Datasheet
2.346In Stock
1.500Expected 8/18/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 2 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 62.5 mOhms
Littelfuse Surface Mount Fuses Fuseblock w/ fuse 3A OMNI BLOK 154
Datasheet
12.894In Stock
37.500On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Fast Blow 3 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 22.7 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK SB RoHS 260C 3A
Datasheet
1.922In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 3 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 34 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK SB RoHS 260C 4A
Datasheet
1.015In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 4 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 18.6 mOhms
Littelfuse Surface Mount Fuses Fuseblock w/ fuse 5A OMNI BLOK 154
Datasheet
5.775In Stock
75.000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Fast Blow 5 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 12.5 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK VFA RoHS 260C 5A
Datasheet
1.523In Stock
1.500Expected 12/21/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Fast Blow 5 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 12.5 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK SB RoHS 260C 5A
Datasheet
3.443In Stock
3.000Expected 9/29/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 5 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 13.6 mOhms
Littelfuse Surface Mount Fuses Fuseblock w/ fuse 7A OMNI BLOK 154
Datasheet
5.279In Stock
16.500On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Fast Blow 7 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 9 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK VFA RoHS 260C 7A
Datasheet
1.072In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Fast Blow 7 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 9 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK SB RoHS 7A
Datasheet
2.784In Stock
45.000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 7 A 72 VAC 60 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 10.5 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK SB ROHS 260C 7A
Datasheet
2.747In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 7 A 72 VAC 60 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 10.5 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK VFA RoHS 260C 8A
Datasheet
2.545In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Fast Blow 8 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 7.7 mOhms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse1.6A OMNI BLOK 154
Datasheet
2.239In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Fast Blow 1.6 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 58 mOhms
Littelfuse Surface Mount Fuses Fuse with Holder 10A FAST OMNI BLOK 154
Datasheet
13.485In Stock
81.000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Fast Blow 10 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 5.6 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK VFA RoHS 260C 10A
Datasheet
4.736In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Fast Blow 10 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 5.6 mOhms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse2.5A OMNI BLOK 154
Datasheet
5.919In Stock
6.000Expected 8/31/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Fast Blow 2.5 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 28.6 mOhms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse2.5A OMNI BLOK 154T
Datasheet
15.473In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 2.5 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 45 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK VFA RoHS 260C .062A
Datasheet
6In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

154 Surface Mount Fuse with Fuse Holders Fast Blow 62 mA 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 5.5 Ohms